Fluoride occurs naturally in nearly all water supplies. Water is “fluoridated” when a public water system adjusts the fluoride to a level that is optimal for preventing tooth decay, either by lowering the amount of fluoride in the water or increasing it.i
Roughly 74% of Americans connected to public water systems receive fluoridated water. However, more than 100 million Americans do not have access to drinking water that is fluoridated.
Fluoride is highly effective at preventing tooth decay
Research proves that fluoridation reduces tooth decay by about 25 percent.i
As the rate of fluoridation steadily increased in the U.S., the average number of decayed, filled, or missing teeth among 12-year-olds fell 68% between 1966 and 1994.ii
Research demonstrates the long-term benefits of fluoridation. A 2010 study confirmed that consuming fluoridated water as a young child makes the loss of teeth due to decay less likely 40 or 50 years later when that child is a middle-aged adult.iii
The Centers for Disease Control and Prevention has praised water fluoridation as one of “ten great public health achievements of the 20th century.”iv
Fluoride is beneficial to all people regardless of age or socio-economic status
A 2002 study called water fluoridation “the most effective and practical method” for reducing the gap in decay rates between low-income and upper-income Americans. The study concluded, “There is no practical alternative to water fluoridation for reducing these disparities in the United States.”v
At a time when more than 100 million Americans lack dental insurance, fluoridation offers an easy, inexpensive preventive strategy that everyone benefits from simply by turning on their tap.vi
Although Americans’ dental health has improved considerably in recent decades, tooth decay and other oral health issues remain a challenge. A 2010 study revealed that nearly one out of seven children aged 6 to 12 years had suffered a toothache over the previous six months.vii
Fluoride is cost-effective and saves money
Fluoridated water is the most inexpensive way to provide fluoride. The per-person annual cost of fluoride supplements is more than 70 times higher than fluoridated water. Fluoride varnishes or gels also cost more than providing fluoridated water.viii
Ending fluoridation is likely to increase family dental expenses to treat decayed teeth. The evidence shows that fluoridation is inexpensive to maintain and saves money down the road. The typical cost of fluoridating a local water system is between 40 cents and $2.70 per person, per year.ix
For most cities, every $1 invested in water fluoridation saves $38 in dental treatment costs.x
Taxpayers save money because fluoridation reduces Medicaid expenses on dental treatments. Studies in Texas and New York have shown that states save approximately $24 per person, per year in Medicaid expenditures because of the cavities that were prevented by drinking fluoridated water.xi,xii
Fluoride is extremely safe
Over the past several decades, hundreds of studies have confirmed the safety of fluoride. According to the Centers for Disease Control and Prevention, “panels of experts from different health and scientific fields have provided strong evidence that water fluoridation is safe and effective.” This issue has been studied thoroughly, and there is no credible evidence to support the claims that anti-fluoride activists make.xiii
The leading health and medical organizations support water fluoridation. This list includes the American Academy of Pediatrics, the American Dental Association, the Institute of Medicine, the Centers for Disease Control and Prevention, and the American Academy of Family Physicians.
More than 3,000 studies or research papers have been produced about fluoridation and fluoride. After all of these studies, if there were any evidence of supposed harms, we would know about it by now. Two facts are clear: Americans have been drinking fluoridated water for over 65 years, and there is overwhelming evidence showing it is both safe and effective.
Anti-fluoride activists have no evidence proving that fluoride is harmful at the level used for fluoridating water. They will make all kinds of claims, but the science doesn’t back them up. If you want to know what the evidence shows about fluoridation, visit this site: http://www.pewcenteronthestates.org/initiatives_detail.aspx?initiativeID=85899367159
i “Fluoridation Basics,” Centers for Disease Control and Prevention,